package com.itheima.reggie.controller;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.itheima.reggie.common.R;
import com.itheima.reggie.dto.SetmealDto;
import com.itheima.reggie.entity.Category;
import com.itheima.reggie.entity.Setmeal;
import com.itheima.reggie.service.CategoryService;
import com.itheima.reggie.service.SetmealDishService;
import com.itheima.reggie.service.SetmealService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CacheEvict;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.web.bind.annotation.*;

import java.util.List;
import java.util.stream.Collectors;

/**
 * 套餐管理
 */
@Slf4j
@RestController
@RequestMapping("/setmeal")
public class SetmealController {
    @Autowired
    private SetmealService setmealService;
    @Autowired
    private SetmealDishService setmealDishService;
    @Autowired
    private CategoryService categoryService;


    /**
     * 新增套餐
     *
     * @param setmealDto
     * @return
     */
    @PostMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> save(@RequestBody SetmealDto setmealDto) {
        log.info("套餐信息：{}", setmealDto);

        setmealService.saveWithDish(setmealDto);
        return R.success("新增套餐成功");
    }

    /**
     * 套餐分页查询
     *
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize, String name) {

        log.info("page:{}", "pageSize:{}", "name:{}", page, pageSize, name);
        //分页构造器
        Page<Setmeal> setmealPage = new Page<>(page, pageSize);
        Page<SetmealDto> setmealDtoPage = new Page<>();

        BeanUtils.copyProperties(setmealPage, setmealDtoPage, "records");

        //条件构造器
        LambdaQueryWrapper<Setmeal> wrapper = new LambdaQueryWrapper<>();
        wrapper.like(StringUtils.isNotEmpty(name), Setmeal::getName, name);
        wrapper.orderByDesc(Setmeal::getUpdateTime);

        //查询
        setmealService.page(setmealPage, wrapper);

        //获取 setmealPage的 records 拷贝到   setmealDtoPage 的records
        List<Setmeal> records = setmealPage.getRecords();

        List<SetmealDto> list = records.stream().map((item) -> {

            SetmealDto setmealDto = new SetmealDto();
            BeanUtils.copyProperties(item, setmealDto);

            //获取套餐id 根据id查询套餐名称 并赋值给setmealDto 的categoryName
            Long categoryId = item.getCategoryId();
            Category category = categoryService.getById(categoryId);
            if (category != null) {
                setmealDto.setCategoryName(category.getName());
            }
            return setmealDto;
        }).collect(Collectors.toList());

        //设置setmealDtoPage 的records
        setmealDtoPage.setRecords(list);
        return R.success(setmealDtoPage);
    }

    /**
     * 根据id删除
     * @param ids
     * @return
     */
    @DeleteMapping
    public R<String> delete(@RequestParam List<Long> ids){
        log.info("ids:{}",ids);

        setmealService.deleteWithDish(ids);
        return R.success("删除成功");
    }

    /**
     * 根据id查询
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<SetmealDto> getById(@PathVariable Long id){//套餐id
        log.info("id:{}",id);
        SetmealDto setmealDto = setmealService.getByIdWithDish(id);
        return R.success(setmealDto);
    }

    /**
     * 修改套餐
     * @param setmealDto
     * @return
     */
    @PutMapping
    @CacheEvict(value = "setmealCache",allEntries = true)
    public R<String> update(@RequestBody SetmealDto setmealDto){
        log.info(setmealDto.toString());
        setmealService.updateWithDish(setmealDto);
        return R.success("修改成功");
    }

    @GetMapping("/list")
    @Cacheable(value = "setmealCache",key = "#setmeal.categoryId+'_'+setmeal.status")
    public R<List<Setmeal>> list(Setmeal setmeal){
        log.info("id={}",setmeal.getCategoryId());

        LambdaQueryWrapper<Setmeal> wrapper=new LambdaQueryWrapper<>();
        wrapper.eq(setmeal.getCategoryId()!=null,Setmeal::getCategoryId,setmeal.getCategoryId());
        wrapper.eq(setmeal.getStatus()!=null,Setmeal::getStatus,setmeal.getStatus());
        List<Setmeal> list = setmealService.list(wrapper);
        return R.success(list);
    }
}
